From: Nikolai Grigoriev (email@example.com)
Date: Mon Feb 24 2003 - 12:09:56 PST
> I was curious if XEP applies jpg or zip compression to a jpg graphic when
> is processed into the pdf? If it does, is it something that can be set?
Starting from version 3.0, XEP does not modify JPEG data - it just
copies the whole file into PDF as is. So there's nothing to tune,
and no possibility for additional loss of quality.
> We noticed that the edges of some of the jpgs were a little fuzzy
> and were looking for a way to make them sharper.
JPEG is generally not the best format for line art containing
sharp edges - it tends to create transition effects ("JPEG artifacts").
Edge fuzziness is inherent for the type of compression used in JPEG;
there's nothing to do. You may consider other, non-lossy formats
instead. For example, PNG is equally efficient with XEP: unless
there are some special features like gamma, interlacing, or alpha channel,
the data are copied transparently from the input file to the resulting
PDF, generating no overhead even for big images.
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